可撤销匿名的公平盲代理签名方案的改进

An Anonymity-Revoking Fair Blind Proxy Signature Scheme

论文利用公平电子现金的思想,在谷利则等人的盲代理签名方案的基础上提出了一个可撤销匿名、可回收代理签名权的代理签名方案。该方案既保证了原始签名人的利益,也保护了代理签名人的隐私。方案满足匿名代理签名特征:可验证性、强不可伪造性、可追踪性,并且计算量较小。同时,第三方易于揭开给定签名和撤销指定代理人的代理签名权。

According to the idea of fair electronic wallet, a new proxy signature scheme based on Lize Gu＇s scheme is proposed in this paper. In this scheme￡＂the anonymity of proxy signer can be revoked, and the right of proxy signer can be canceled. It can protect not only the original signer＇s benefit but also the proxy signer＇s privacy. This scheme meets the requirement of blind proxy signature, while the third party is easy to revoke a supposed signature and cancel the right of a supposed signer.